I would suggest a LDC from our very own Rocker1 here on the forum. Iíve got one for my P-rod and Streamline and they are VERY VERY effective and quiet.
https://donnyfl.com/ I would check out one of his adapters and possibly a Sumo or Ronin. Maybe one of his smaller moderators would do the trick also. Give Donny a shout, heíll set you straight. You wonít be disappointed in my opinion.